/**
 * Copyright 2018 人人开源 http://www.renren.io
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package io.renren.modules.job.utils;

import java.util.Date;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

import org.apache.commons.lang.StringUtils;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.quartz.QuartzJobBean;

import io.netty.util.concurrent.DefaultThreadFactory;
import io.renren.common.utils.SpringContextUtils;
import io.renren.modules.job.entity.ScheduleJobEntity;
import io.renren.modules.job.entity.ScheduleJobLogEntity;
import io.renren.modules.job.service.ScheduleJobLogService;

/**
 * 定时任务
 *
 * @author Mark sunlightcs@gmail.com
 * @since 1.2.0 2016-11-28
 */
public class ScheduleJob extends QuartzJobBean {
    private Logger logger = LoggerFactory.getLogger(getClass());

    private static ExecutorService service;

    static {
        service = new ThreadPoolExecutor(2, 5, 30, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(1000),
            defaultThreadFactory());
    }

    public static ThreadFactory defaultThreadFactory() {
        return new DefaultThreadFactory("jobThreadFactory");
    }

    @Override
    protected void executeInternal(JobExecutionContext context) throws JobExecutionException {
        ScheduleJobEntity scheduleJob =
            (ScheduleJobEntity)context.getMergedJobDataMap().get(ScheduleJobEntity.JOB_PARAM_KEY);

        // 获取spring bean
        ScheduleJobLogService scheduleJobLogService =
            (ScheduleJobLogService)SpringContextUtils.getBean("scheduleJobLogService");

        // 数据库保存执行记录
        ScheduleJobLogEntity log = new ScheduleJobLogEntity();
        log.setJobId(scheduleJob.getJobId());
        log.setBeanName(scheduleJob.getBeanName());
        log.setMethodName(scheduleJob.getMethodName());
        log.setParams(scheduleJob.getParams());
        log.setCreateTime(new Date());

        // 任务开始时间
        long startTime = System.currentTimeMillis();

        try {
            // 执行任务
            logger.info("任务准备执行，任务ID：" + scheduleJob.getJobId());
            ScheduleRunnable task =
                new ScheduleRunnable(scheduleJob.getBeanName(), scheduleJob.getMethodName(), scheduleJob.getParams());
            Future<?> future = service.submit(task);

            future.get();

            // 任务执行总时长
            long times = System.currentTimeMillis() - startTime;
            log.setTimes((int)times);
            // 任务状态 0：成功 1：失败
            log.setStatus(0);

            logger.info("任务执行完毕，任务ID：" + scheduleJob.getJobId() + "  总共耗时：" + times + "毫秒");
        } catch (Exception e) {
            logger.error("任务执行失败，任务ID：" + scheduleJob.getJobId(), e);

            // 任务执行总时长
            long times = System.currentTimeMillis() - startTime;
            log.setTimes((int)times);

            // 任务状态 0：成功 1：失败
            log.setStatus(1);
            log.setError(StringUtils.substring(e.toString(), 0, 2000));
        } finally {
            scheduleJobLogService.insert(log);
        }
    }
}
